🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.29

Radius: 1.39

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.5 AU - 0.76 AU

Year: 182 Days

Day: 17.5 Hours

Environment

Temp: 213 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.29 AU - 1.81 AU

Year: 701 Days

Day: 23 Hours

Environment

Temp: -47 °C

Axial Tilt: 2.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.09

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.31 AU - 1.79 AU

Year: 701 Days

Day: 14.7 Hours

Environment

Temp: -31 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,808,755 km

• M1: 210,185 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.62 AU - 2.08 AU

Year: 915 Days

Day: 43.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,808,755 km

• M1: 49,367 km (0.057 R)
• M2: 239,506 km (0.097 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 3.29 AU - 3.51 AU

Year: 2278 Days

Day: 28.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.13 AU - 4.29 AU

Year: 3139 Days

Day: 38.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,808,755 km

• M1: 237,412 km (0.054 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 13.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 6.84 AU - 9.36 AU

Year: 8378 Days

Day: 13.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,808,755 km

• M1: 174,581 km (0.069 R)
• M2: 725,998 km (0.096 R)
• M3: 1,500,167 km (0.077 R)
• M4: 2,408,975 km (0.064 R)
• M5: 3,898,521 km (0.065 R)
• M6: 4,439,766 km (0.073 R)
• M7: 5,516,421 km (0.033 R)
• M8: 7,583,565 km (0.095 R)
• M9: 8,182,704 km (0.098 R)
• M10: 8,727,390 km (0.091 R)
• M11: 9,162,720 km (0.102 R)
• M12: 9,983,115 km (0.106 R)
• M13: 11,304,812 km (0.032 R)
• M14: 14,413,456 km (0.098 R)
• M15: 14,899,798 km (0.103 R)
• M16: 16,099,124 km (0.115 R)
• M17: 18,122,585 km (0.095 R)
• M18: 18,546,695 km (0.108 R)
• M19: 19,268,505 km (0.066 R)
• M20: 20,462,146 km (0.115 R)
• M21: 20,922,309 km (0.042 R)
• M22: 26,997,030 km (0.037 R)
• M23: 31,337,912 km (0.088 R)
• M24: 33,514,411 km (0.045 R)
• M25: 34,802,598 km (0.03 R)

Kuiper Belt

Range: 30.2 - 50.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 14,769 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit